Device for preventing out-of-plane deformation of cross beam without top flange

Abstract

The utility model relates to a device for preventing out-of-plane deformation of a cross beam without a top flange, the device is used for connecting the cross beam and a steel bridge deck, the device comprises a connecting assembly, a supporting lead screw and a clamping plate assembly, one end of the supporting lead screw is connected with the steel bridge deck through the connecting assembly, and the other end of the supporting lead screw is connected with the cross beam through the clamping plate assembly. Therefore, out-of-plane deformation of the cross beam is limited; the connecting assembly comprises a magnetic base, the magnetic base is attracted and fixed to the bottom end of the steel bridge deck through magnetic force, and the supporting lead screw is fixedly connected with the magnetic base. Compared with the prior art, the device for preventing the out-of-plane deformation of the cross beam without the top flange has the advantages that the out-of-plane deformation of the cross beam can be conveniently limited, and meanwhile damage to coating of the cross beam can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge construction field especially prevent the device of no upper flange crossbeam surface out of shape. BACKGROUND

[0002] Steel structure bridge is a kind of bridge structure with very wide application range.For the steel bridge deck structure with larger transverse dimension, the process of separating installation of crossbeam and bridge deck is usually adopted for construction. When the steel bridge deck is installed, the crossbeam is in inverted T-shaped section without upper flange, at this time, out-of-plane deformation is prone to occur, resulting in change of position in the middle of crossbeam.

[0003] In the prior art, the common method for limiting out-of-plane deformation of crossbeam without upper flange is to use profile steel welding. This method involves welding additional profile steel members around the crossbeam to enhance the stability of the structure and prevent unexpected out-of-plane deformation of the crossbeam under loading or external action. However, the welding process has some significant disadvantages: (1) the welding work needs to be performed by professional technicians, and the welding process requires high technical requirements, and there may be safety risks when working at high altitude; (2) high temperature generated during welding process can damage the original anticorrosion coating of the crossbeam, which may cause surface ablation or coating peeling, increasing repair cost and time; (3) welding may cause local thermal stress, which may have negative impact on the integrity of the structure, especially disturbing the stability of the existing structure. SUMMARY

[0004] The purpose of the utility model is to provide a device for preventing out-of-plane deformation of crossbeam without upper flange, which can conveniently limit the out-of-plane deformation of crossbeam and also avoid damage to the coating of crossbeam.

[0005] The purpose of the utility model can be achieved by the following technical solutions:

[0006] A device for preventing out-of-plane deformation of crossbeam without upper flange, the device is used to connect crossbeam and steel bridge deck, and the device comprises a connecting assembly, a supporting lead screw and a clamping plate assembly, one end of the supporting lead screw is connected to the steel bridge deck through the connecting assembly, and the other end of the supporting lead screw is connected to the crossbeam through the clamping plate assembly, so as to limit the out-of-plane deformation of the crossbeam.

[0007] The connecting assembly comprises a magnetic base, the magnetic base is fixed to the bottom end of the steel bridge deck by magnetic force adsorption, and the supporting lead screw is fixedly connected to the magnetic base.

[0008] In one embodiment of the utility model, the connecting assembly further comprises a connecting sleeve, one end of the supporting lead screw is fixed to the magnetic base through the connecting sleeve, and the connecting sleeve is used to fix the rear end of the supporting lead screw.

[0009] In an embodiment of the utility model, the clamping plate assembly includes the limit clamping plate, the other end of the support lead screw is equipped with two limit clamping plates, and the crossbeam top is fixed between two limit clamping plates.

[0010] In an embodiment of the utility model, the limit clamping plate is equipped with the adjusting nut away from the side of crossbeam, and the adjusting nut is used for extruding and fixing the limit clamping plate on the crossbeam, so that the fixing of the front end of support lead screw and crossbeam is realized.

[0011] In an embodiment of the utility model, the crossbeam includes the crossbeam web, and the two limit clamping plates are connected with the crossbeam web top.

[0012] In an embodiment of the utility model, the crossbeam web is equipped with the U rib slot, and the U rib slot is used for placing the support lead screw.

[0013] In an embodiment of the utility model, the crossbeam further includes the crossbeam lower flange, and the crossbeam lower flange is arranged at the crossbeam web bottom.

[0014] In an embodiment of the utility model, the crossbeam further includes the crossbeam horizontal stiffening rib and the crossbeam vertical stiffening rib, the crossbeam horizontal stiffening rib is fixed on the crossbeam web,

[0015] one end of the crossbeam vertical stiffening rib is fixed above the crossbeam lower flange, and the other end of the crossbeam vertical stiffening rib is fixedly connected with the crossbeam horizontal stiffening rib.

[0016] In an embodiment of the utility model, the steel bridge deck bottom is equipped with the U-shaped stiffening rib, and the magnetic base is fixed on the U-shaped stiffening rib side end surface by magnetic force.

[0017] In an embodiment of the utility model, the two ends of the steel bridge deck are fixed above the steel longitudinal beam.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1, the utility model discloses a light assembly type rod piece, is connected through clamping plate or magnetic base, and the surface paint of steel structure is not damaged, and operation is convenient.

[0020] 2, in the utility model, the clamping plate assembly can adjust the position of the front end of support lead screw through adjusting nut, and is suitable for the requirement of different crossbeam spacing.

[0021] 3, in the utility model, the transverse position of the support lead screw can be flexibly arranged according to need, and can be alternately removed when the bridge deck is installed at the corresponding position.

[0022] 4. The device for preventing the out-of-plane deformation of the upper wing beam of the bridge, which is characterized in that the structure design of the device considers the possible out-of-plane deformation of the beam when the beam bears the load, the connection of the supporting lead screw and the clamping plate assembly with the beam forms the constraint of the beam, effectively prevents the unexpected deformation of the beam, and thus increases the stability and safety of the bridge structure.

[0023] 5. The device for preventing the out-of-plane deformation of the upper wing beam of the bridge, which is characterized in that the combination of the magnetic base and the connecting sleeve is adopted, the device has flexibility and ensures the stability of the structure during installation and use, reduces the damage of the installation work to the bridge body, is convenient for the later maintenance and inspection, effectively reduces the bridge safety hidden danger caused by the out-of-plane deformation of the beam, and improves the service life of the bridge. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 Figure 1 is a general structure schematic view of the device for preventing the out-of-plane deformation of the upper wing beam of the bridge in the utility model;

[0025] Fig. 2 Figure 2 is a plane layout view of the device for preventing the out-of-plane deformation of the upper wing beam of the bridge in the utility model;

[0026] Fig. 3 Figure 3 is a structure schematic view of the clamping plate assembly;

[0027] Fig. 4 Figure 4 is a structure schematic view of the connecting assembly;

[0028] Brief description of drawings: 1, connecting assembly, 1-1, magnetic base, 1-2, connecting sleeve, 2, supporting lead screw, 3, clamping plate assembly, 3-1, limiting clamping plate, 3-2, adjusting nut, 4, beam web, 5, beam lower wing, 6, beam horizontal stiffening rib, 7, beam vertical stiffening rib, 8, steel bridge deck, 9, U-shaped stiffening rib, 10, steel longitudinal beam. DETAILED DESCRIPTION

[0029] The utility model will be described in detail in combination with the drawings and specific embodiments. The embodiments are implemented on the premise of the technical scheme of the utility model, and detailed implementation modes and specific operation processes are given, but the protection scope of the utility model is not limited to the following embodiments.

[0030] It should be noted that: similar labels and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0031] In the description of the utility model, it needs to explain, the term "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and so on the orientation or position relation indicated is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, a specific orientation and operation, therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the utility model, it needs to explain, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0033] Some embodiments of the utility model will be described in detail below in combination with the drawings. In the case of no conflict, the following examples and the features in the examples can be combined with each other.

[0034] Example 1

[0035] Referring to Figs. 1 to 4 , the embodiment provides a device for preventing the out-of-plane deformation of the upper wing beam, which is used for connecting the beam and the steel bridge deck plate 8, the device comprises a connecting assembly 1, a supporting lead screw 2 and a clamping plate assembly 3, one end of the supporting lead screw 2 is connected with the steel bridge deck plate 8 through the connecting assembly 1, the other end of the supporting lead screw 2 is connected with the beam through the clamping plate assembly 3, so as to limit the out-of-plane deformation of the beam.

[0036] The connecting assembly 1 comprises a magnetic base 1-1, the magnetic base 1-1 is fixed to the bottom end of the steel bridge deck plate 8 by magnetic force adsorption, and the supporting lead screw 2 is fixedly connected with the magnetic base 1-1.

[0037] In the embodiment, the connecting assembly 1 further comprises a connecting sleeve 1-2, one end of the supporting lead screw 2 is fixed on the magnetic base 1-1 through the connecting sleeve 1-2, and the connecting sleeve 1-2 is used for fixing the rear end of the supporting lead screw 2.

[0038] In the embodiment, the clamping plate assembly 3 comprises a limiting clamping plate 3-1, the other end of the supporting lead screw 2 is provided with two limiting clamping plates 3-1, and the top end of the beam is fixed between the two limiting clamping plates 3-1.

[0039] In the embodiment, the limiting clamping plate 3-1 is provided with an adjusting nut 3-2 away from one side of the cross beam, and the adjusting nut 3-2 is used to extrude and fix the limiting clamping plate 3-1 on the cross beam, so that the front end of the supporting lead screw 2 is fixed on the cross beam.

[0040] In the embodiment, the cross beam comprises a cross beam web 4, and the two limiting clamping plates 3-1 are connected to the top end of the cross beam web 4.

[0041] In the embodiment, the cross beam web 4 is provided with a U-rib notch, and the U-rib notch is used to place the supporting lead screw 2.

[0042] In the embodiment, the cross beam further comprises a cross beam lower flange 5 arranged at the bottom end of the cross beam web 4.

[0043] In the embodiment, the cross beam further comprises a cross beam horizontal stiffening rib 6 and a cross beam vertical stiffening rib 7, the cross beam horizontal stiffening rib 6 is fixed on the cross beam web 4,

[0044] one end of the cross beam vertical stiffening rib 7 is fixed above the cross beam lower flange 5, and the other end of the cross beam vertical stiffening rib 7 is fixedly connected with the cross beam horizontal stiffening rib 6.

[0045] In the embodiment, the bottom end of the steel bridge deck 8 is provided with a U-shaped stiffening rib 9, and the magnetic base 1-1 is fixed on the side end surface of the U-shaped stiffening rib 9 by magnetic force.

[0046] In the embodiment, the two ends of the steel bridge deck 8 are fixed above the steel stringer 10.

[0047] In addition, the embodiment also provides a use method of the device for preventing the out-of-plane deformation of the cross beam without upper flange, and the specific steps are as follows:

[0048] The rear end of the supporting lead screw 2 is connected with the installed steel bridge deck 8, the front end of the supporting lead screw 2 is placed on the U-rib notch of the cross beam web 4, the adjusting nuts 3-2 on both sides are rotated, so that the limiting clamping plate 3-1 clamps the cross beam web 4, and the front end of the supporting lead screw 2 is fixed.

[0049] The above description of the embodiments is for the convenience of the ordinary skilled in the art to understand and use the utility model. Those skilled in the art can obviously make various modifications to these embodiments, and apply the general principles described herein to other embodiments without creative labor. Therefore, the utility model is not limited to the above embodiments, and the improvements and modifications made by those skilled in the art without departing from the scope of the utility model should be within the protection scope of the utility model.

Claims

1. A device for preventing out-of-plane deformation of a no-top-flange crossbeam, characterized by, The device is used for connecting the cross beam and the steel bridge deck plate (8), and comprises a connecting assembly (1), a supporting screw rod (2) and a clamping plate assembly (3), one end of the supporting screw rod (2) is connected with the steel bridge deck plate (8) through the connecting assembly (1), and the other end of the supporting screw rod (2) is connected with the cross beam through the clamping plate assembly (3), so as to limit the out-of-plane deformation of the cross beam. The connecting assembly (1) comprises a magnetic base (1-1), the magnetic base (1-1) is fixed on the bottom end of the steel bridge deck plate (8) by magnetic force adsorption, and the supporting screw rod (2) is fixedly connected with the magnetic base (1-1).

2. A device for preventing out-of-plane deformation of a no-top-flange crossbeam according to claim 1, characterized in that, The connecting assembly (1) further comprises a connecting sleeve (1-2), one end of the supporting screw rod (2) is fixed on the magnetic base (1-1) through the connecting sleeve (1-2), and the connecting sleeve (1-2) is used for fixing the rear end of the supporting screw rod (2).

3. A device for preventing out-of-plane deformation of a no-top-flange crossbeam according to claim 1, characterized in that, The clamping plate assembly (3) comprises a limiting clamping plate (3-1), the other end of the supporting screw rod (2) is provided with two limiting clamping plates (3-1), and the top end of the cross beam is fixed between the two limiting clamping plates (3-1).

4. A device for preventing out-of-plane deformation of a no-top-flange crossbeam according to claim 3, characterized in that, The side, away from the cross beam, of the limiting clamping plate (3-1) is provided with an adjusting nut (3-2), the adjusting nut (3-2) is used for extruding and fixing the limiting clamping plate (3-1) on the cross beam, so as to fix the front end of the supporting screw rod (2) and the cross beam.

5. The apparatus of claim 3 wherein, The cross beam comprises a cross beam web (4), and the two limiting clamping plates (3-1) are connected with the top end of the cross beam web (4).

6. A device for preventing out-of-plane deformation of a no-top-flange crossbeam according to claim 5, characterized in that, The cross beam web (4) is provided with a U-rib slot, and the U-rib slot is used for placing the supporting screw rod (2).

7. A device for preventing out-of-plane deformation of a no-top-flange crossbeam according to claim 5, wherein The cross beam further comprises a cross beam lower flange (5), and the cross beam lower flange (5) is arranged at the bottom end of the cross beam web (4).

8. A device for preventing out-of-plane deformation of a no-top-flange crossbeam according to claim 7, characterized in that, The cross beam further comprises a cross beam horizontal stiffening rib (6) and a cross beam vertical stiffening rib (7), the cross beam horizontal stiffening rib (6) is fixed on the cross beam web (4), one end of the cross beam vertical stiffening rib (7) is fixed above the cross beam lower flange (5), and the other end of the cross beam vertical stiffening rib (7) is fixedly connected with the cross beam horizontal stiffening rib (6).

9. The apparatus for preventing out-of-plane deformation of a no-top-flange crossbeam of claim 1, wherein, The bottom end of the steel bridge deck plate (8) is provided with a U-shaped stiffening rib (9), and the magnetic base (1-1) is fixed on the side end surface of the U-shaped stiffening rib (9) by magnetic force adsorption.

10. The apparatus for preventing out-of-plane deformation of a no-top-flange crossbeam of claim 1, wherein, The two ends of the steel bridge deck plate (8) are fixed above the steel longitudinal beam (10).

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